From d9a33bf405810b257cfd240c862ca0ab21a976b3 Mon Sep 17 00:00:00 2001
From: Andrea Boriero <andrea@hibernate.org>
Date: Fri, 19 Jun 2020 12:33:25 +0100
Subject: [PATCH] HHH-14077 Add test for issue

---
 .../CriteriaLiteralWithSingleQuoteTest.java   | 121 ++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 hibernate-core/src/test/java/org/hibernate/orm/test/jpa/criteria/literal/CriteriaLiteralWithSingleQuoteTest.java

diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/jpa/criteria/literal/CriteriaLiteralWithSingleQuoteTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/jpa/criteria/literal/CriteriaLiteralWithSingleQuoteTest.java
new file mode 100644
index 0000000000..cec46bd0fc
--- /dev/null
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/jpa/criteria/literal/CriteriaLiteralWithSingleQuoteTest.java
@@ -0,0 +1,121 @@
+package org.hibernate.orm.test.jpa.criteria.literal;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.Table;
+import javax.persistence.criteria.CriteriaBuilder;
+import javax.persistence.criteria.CriteriaQuery;
+
+import org.hibernate.testing.junit5.EntityManagerFactoryBasedFunctionalTest;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+
+public class CriteriaLiteralWithSingleQuoteTest extends EntityManagerFactoryBasedFunctionalTest {
+
+	@Override
+	public Class[] getAnnotatedClasses() {
+		return new Class[] { Student.class };
+	}
+
+	@Test
+	public void literalSingleQuoteTest() {
+
+		inTransaction(
+				entityManager -> {
+					CriteriaBuilder cb = entityManager.getCriteriaBuilder();
+					CriteriaQuery<Object> query = cb.createQuery();
+					query.select( cb.literal( '\'' ) ).from( Student.class );
+					Object object = entityManager.createQuery( query ).getSingleResult();
+					assertEquals( '\'', object );
+				}
+		);
+	}
+
+	@Test
+	public void literalProjectionTest() {
+
+		inTransaction(
+				entityManager -> {
+					CriteriaBuilder cb = entityManager.getCriteriaBuilder();
+					CriteriaQuery<Object> query = cb.createQuery();
+					query.multiselect( cb.literal( "' || aValue || '" ) ).from( Student.class );
+					Object object = entityManager.createQuery( query ).getSingleResult();
+					assertEquals( "' || aValue || '", object );
+				}
+		);
+	}
+
+	@Test
+	public void testLiteralProjectionAndGroupBy() {
+		inTransaction(
+				entityManager -> {
+
+					final String literal = "' || aValue || '";
+
+					CriteriaBuilder cb = entityManager.getCriteriaBuilder();
+					CriteriaQuery<Object> query = cb.createQuery();
+					query.multiselect( cb.literal( literal ) )
+							.from( Student.class );
+					query.groupBy( cb.literal( literal ) );
+
+					Object object = entityManager.createQuery( query ).getSingleResult();
+					assertEquals( literal, object );
+				}
+		);
+	}
+
+	@BeforeEach
+	public void setupData() {
+		inTransaction(
+				entityManager -> {
+					Student student = new Student();
+					student.setAValue( "A Value" );
+					entityManager.persist( student );
+				}
+		);
+	}
+
+	@AfterEach
+	public void cleanupData() {
+		inTransaction(
+				entityManager -> {
+					entityManager.createQuery( "delete from Student" );
+				}
+		);
+	}
+
+	@Entity(name = "Student")
+	@Table(name = "Students")
+	public static class Student {
+
+		@Id
+		@GeneratedValue
+		private Long id;
+
+		@Column
+		private String aValue;
+
+		public Long getId() {
+			return id;
+		}
+
+		public void setId(Long id) {
+			this.id = id;
+			this.id = id;
+		}
+
+		public String getAValue() {
+			return aValue;
+		}
+
+		public void setAValue(String value) {
+			this.aValue = value;
+		}
+	}
+}
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